Question

NEED HELP

my brother is half as old as i am. my sister is twice as old as i am. the sum of our ages is 35. how old am i?

Answer 1

Say ur age is 2x.
Then ur brother's age will be x.
Also ur sister's age will be 4x.
2x+x+4x=35
solve x.
Then find 2x nd that will be your age.

Answer 2

Can u do it @arlinda27?

Answer 3

immortal

Answer 4

Let,
x = your age
y = brother's age
z = sister's age.

As your brother age is half of yours,
i.e. y = x/2

Your sister is twice as old as you,
i.e. z = 2x = 4y

Now, the sum of your age = 35
or, x + y + z = 35

or, 2y + y + 4y = 35

or y = 5

and x = 2 * 5 = 10 Ans.

Answer 5

thank u all

Answer 6

you are most welcomed.